动词不定式何时不带to?

动词不定式由“to+动词原形”构成,但在下列情况下,动词不定式可以不带to:一、在see,find,look at,watch,notice,observe,hear,listen to,feel等感官动词后面作宾语补足语的动词不定式不带to。例如:I saw W u D ong carry w ater for G ranny W ang yesterday.昨天我看到吴东给王奶奶挑水了。W e often watch them do experim ents.我们经常看着他们做实验。Listen to m e recite the text,please.请听我背诵这篇课文。I feltthe floor m ove justnow.我刚才感到地板在动。注意:see,find,w atch,notice,observe,hear,feel等动词用于被动…